Sorry, I was unable to respond yet.

In our config I explicitely defined what interfaces should use bfd, for example:

protocol bfd {
    interface "eth0" {
    };

    interface "eth1" {
    };

    interface "eth4" {
        authentication keyed sha1;
        password "BLADIEBLA";
    };

    multihop {
        interval 300 ms;
        multiplier 3;
    };
}

K.

On 24-07-2020 13:55, Ondrej Zajicek wrote:

Is it a normal situation?
I think BFD has to start the mechanism after BGP neighbor is UP.
Is there any missing part of my configurations?

Your config seems ok.